400224225405 has 16 divisors (see below), whose sum is σ = 640367267904. Its totient is φ = 213450084480.

The previous prime is 400224225403. The next prime is 400224225421. The reversal of 400224225405 is 504522422004.

It is not a de Polignac number, because 400224225405 - 2¹ = 400224225403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400224225403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1503850 + ... + 1749860.

It is an arithmetic number, because the mean of its divisors is an integer number (40022954244).

Almost surely, 2^400224225405 is an apocalyptic number.

It is an amenable number.

400224225405 is a deficient number, since it is larger than the sum of its proper divisors (240143042499).

400224225405 is a wasteful number, since it uses less digits than its factorization.

400224225405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354476.

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 400224225405 its reverse (504522422004), we get a palindrome (904746647409).

The spelling of 400224225405 in words is "four hundred billion, two hundred twenty-four million, two hundred twenty-five thousand, four hundred five".